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Seat lifter for vehicle seat

a technology for vehicle seats and seats, applied in the field of seat lifters, can solve the problems of limited swinging of sector gears

Inactive Publication Date: 2017-03-09
TACHI S CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent text is referring to a technical effect that the invention provides. It achieves this without the need for brackets to keep the pinion gear and sector gear in mesh. This results in a simpler structure and reduces the risk of the gears becoming disengaged from each other.

Problems solved by technology

Therefore, when the left or right end of the elongated hole abuts on the pinion gear, the swinging of the sector gear is limited.

Method used

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  • Seat lifter for vehicle seat
  • Seat lifter for vehicle seat
  • Seat lifter for vehicle seat

Examples

Experimental program
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Effect test

embodiment

[0032]Embodiments of this invention will be described with reference to the accompanying drawings. FIG. 1 is a partial left side view of a vehicle seat that incorporates a seat lifter according to an embodiment of the present invention; FIG. 2A is a perspective view of the left end of the stabilizer of the seat lifter, not showing the stopper to simplify the drawing; FIG. 2B is a front view of a sector gear, not showing the stopper to simplify the drawing; FIG. 3A is a side view showing the rear link, sector gear and stabilizer integrated together; FIG. 3B is a front view of the sector gear as viewed in the direction of line 3B-3B shown in FIG. 3A; and FIG. 3C is a schematic front view of the rear link as viewed in the direction of line 3C-3C shown in FIG. 3A.

[0033]As shown in FIG. 1, the vehicle seat 10 comprises two seat frames, i.e., a seat cushion frame (seat frame) 20 and a seatback frame 22. The seatback frame 22 is coupled, at lower edge, to the rear edge of the seat frame 20...

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Abstract

A seat lifter for the vehicle seat includes a pair of front links and a pair of rear links; a stabilizer having left and right ends to the rear links fixed, respectively; a sector gear fixed to the left or right end of the stabilizer; and a driving means having a pinion gear meshed with the sector gear and a drive member configured to drive the pinion gear; wherein the sector gear has an elongated hole arching around the stabilizer, teeth are cut in an edge of the elongated hole, the pinion gear is inserted in the elongated hole and meshed with the teeth cut in the edge of the elongated hole, and a distal end of the pinion gear protrudes from the elongated hole, and a stopper is provided at the distal end of the pinion gear.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This is the U.S. national stage of application No. PCT / JP2014 / 078438 dated Oct. 27, 2014. Priority under 35 U.S.C. §119(a) and 35 U.S.C. §365(b) is claimed from Japanese Patent Application No. 2014-057378, filed Mar. 20, 2014,the entire contents of which are incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a seat lifter for vehicle seat (vehicular seat), which is designed to be arranged between the seat riser and the seat cushion in order to move the seat cushion up and down with respect to the seat riser.[0004]2. Description of the Related Art[0005]The seat lifer is configured to move the seat cushion up and down with respect to the seat riser, thereby to adjust the height of the seat, and is arranged below the seat cushion of vehicle such as an automobile. The seat lifter has front height links on the left and right sides, and rear height links on the left ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B60N2/16
CPCB60N2/1615B60N2/165B60N2/06B60N2/682
Inventor YAMAMOTO, HIROMI
Owner TACHI S CO LTD